energy efficiency
Loading your saved state.
energy efficiency
The ratio of achieved benefit (e.g., light, heat) to energy used. High energy efficiency means that little energy is lost for a particular purpose.
Durch die neue Heizung hat sich die Energieeffizienz des Hauses deutlich verbessert.
The new heating system has significantly improved the energy efficiency of the house.
This word is made up of 'Energie' (energy) and 'Effizienz' (efficiency). Its meaning is therefore directly understandable if you know the two parts: it is about how efficiently energy is used.
Moderne Geräte haben eine viel höhere Energieeffizienz als alte Modelle.
Modern appliances have much higher energy efficiency than old models.
'Energieeffizienz' (energy efficiency) is often combined with verbs like 'steigern' (to increase), 'verbessern' (to improve), or 'erhöhen' (to raise). Typical adjectives are 'hoch' (high), 'gut' (good), 'niedrig' (low), or 'schlecht' (poor).
Mit der neuen Dämmung wollen wir die Energieeffizienz unseres Hauses steigern.
With the new insulation, we want to increase the energy efficiency of our house.
'Energieeffizienz' (energy efficiency) is a technical term from the fields of technology, construction, the environment, and politics. You often hear and read it in the news, technical reports, or discussions about climate change.
Die Regierung fördert Maßnahmen zur Verbesserung der Energieeffizienz in privaten Haushalten.
The government is promoting measures to improve energy efficiency in private households.
efficiency
Wirkungsgrad and Energieeffizienz both compare a benefit with the energy used. In technical terms, Wirkungsgrad refers to the share of the supplied power that is delivered as usable power. Energieeffizienz assesses more generally how much energy a device needs for a specific benefit, such as light or heat.
Die Energieeffizienz des Motors ist hoch, weil er für dieselbe Arbeit wenig Energie benötigt.
The engine's energy efficiency is high because it requires little energy for the same amount of work.
Der Wirkungsgrad des Motors zeigt, welcher Anteil der zugeführten Leistung nutzbar abgegeben wird.
The engine's efficiency shows what proportion of the supplied power is delivered as usable power.
